Determination of Scandium in ETV-ICP-AES by Using PMBP as Chemical Modifier

Abstract

Abstract: A novel method for the introduction of scandium(Sc), based on the low-temperature volatilization of 1-phenyl-3-methyl-4-benzoyl pyrazolonate(PMBP) chelate from graphite furnace, was reported for electrothermal vaporization(ETV)/ICP-AES. The formation and volatilization of Sc/PMBPchelate in the furnace as well as its affecting factors were investigated in detail. It was found that the existence of extra PMBP was favourable to form the Sc/PMBP chelate and vaporizes/transports quantitatively into ICP. Under optimized conditions, the detection limit was determined to be 0.3 ng/mL. The relative standard deviation (RSD) for 1 ng of scandium was 2.4%(c=0.1 μg/mL, n=7). The scandium content in the standard material vehicle exhaust particulates determined by the proposed method were in good agreement with the reference values.

Key words: ICP-AES, Low-temperature electrothermal vaporization, Scandium/PMBP chelate, Scandium

CLC Number:

O657.31

TrendMD:

PENG Tian-You, JIANG Zu-Cheng  . Determination of Scandium in ETV-ICP-AES by Using PMBP as Chemical Modifier[J]. Chem. J. Chinese Universities, 1998, 19(5): 699.

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Determination of Scandium in ETV-ICP-AES by Using PMBP as Chemical Modifier

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